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algol13
2 years ago
5

A High-speed internet provider A has a $100 setup fee and costs $65 per month. High-speed internet

Mathematics
2 answers:
Roman55 [17]2 years ago
4 0

Answer:

265

Step-by-step explanation:

i don't know I just added all of the answers up. 100+65=165. 70+30=100. 100+165=265

vodomira [7]2 years ago
4 0

Answer:

In 14 months, both providers will cost $1010

Step-by-step explanation:

Provider A costs 65 per month along with a 100 setup fee. You could write that as a slope-intercept equation, c = 65m+100
Provider B costs 70 per month along with a 70 setup fee. You could write that as a slope-intercept equation, c = 70m+30

You can put the two equations together, which would be 65m+100=70m+30. With simple algebra, you would get 5m=70. m would equal 14. So, after 14 months, the providers will cost the same. Now you can substitute 14 as m to find the price. c = 65(14)+100 = 1010. So, after 14 months, both providers will cost $1010.

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Find the new price after the markdown given. Round to the nearest cent if necessary. $5,250 marked down 15%
PIT_PIT [208]

Marked down 15% means the new price would be 85% of the original price ( 100%-15% - 85%)

Multiply the original price by 85%:

5250 x 0.85 = 4462.50

The new price is $4,462.50

4 0
3 years ago
What is the length of angle EF in the right triangle below
salantis [7]

Answer:

E.  √180

Step-by-step explanation:

Using Pythagoras' theorem

a^2 + b^2 = c^2 (c = hypotenuse, a and b are legs)

a^2 = c^2 - b^2

a^2 = 18^2 - 12^2

a^2 = 324 - 144

a^2 = 180

a = √180

Answer

E.  √180

6 0
3 years ago
I forgot how to do this, can someone help me-
Artyom0805 [142]

Step-by-step explanation:

1) x/20 = -9

By cross multiplication,

x = -180

2) -168 = -14k

k = -168/-14

k = 12

3) -5m = -50

m = 10

4) -320 = -20n

n = 16

5) -4 = x - 5

x = 1

6) -6(-8 + n) = -54

42 - 6n = -54

-6n = -54 -52

6n = 106

n = 17.6

7) 3(x - 9) = -3

3x - 27 = -3

3x = 24

x = 8

8) 9k + 3 = -78

9k = -81

k = -9

9)4 + (n/4) = 8

By taking LCM,

16 + n/4 = 8

16 + n = 32

n = 16

10) -5r + 7 = -73

-5r = -80

r = 16

<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>.</em>

6 0
2 years ago
Can u help me please
Dennis_Churaev [7]

Answer:

18. y = -5

19. y = 4x-10

Step-by-step explanation:

Parallel lines have the same slope. You can find the slope from the equation y=mx+b. It is the m value.

For 19, the slope is 4 since y=4x has m = 4. To find a line parallel to it that crosses through the point (3,2), substitute m = 4 and (3,2) into the point slope formula.

y-y_1=m(x-x_1)\\y - 2 = 4(x-3)\\y-2 = 4x -12\\y = 4x - 10

It simplifies to y = 4x - 10.

For equations like 18 where y = 8 there is no m value. There is no slope. This is a horizontal line through 8 on the y-axis. A parallel line is another horizontal line through the y value of (-6,-5). The line is written he same way as y = -5.

8 0
3 years ago
A company sells mattresses for $365each. To produce a batch of nmattresses, there is a cost of $254 per mattress and a fixed or
neonofarm [45]
Any function to determine profit is revenue - cost. 

If the number of mattresses made is x, then the revenue made per mattress is 365x. 

Under the same assumption, the cost per mattress is 254x + 9100, adding the setup costs to the cost per mattress.

Thus, the function is f(x) = 365x - (254x + 9100). We can simplify this function.

First, lets expand the negative (the same as multiplying each value by -1).
f(x) = 365x - 254x - 9100

Next, we'll combine like terms.
f(x) = 111x - 9100
Therefore, the function for profit is f(x) = 111x - 9100.

Continuing, we need to determine how many mattresses the company needs to break even. Breaking even means there is no profit, but also no loss. Otherwise, they make 0 total. So, we can set the function we just found to 0 and solve for x.


Set the function to 0.
0 = 111x - 9100

Add 9100 to both sides.
9100 = 111x

Divide both sides by 111.
81.98 = x

Rounding this number up, it would take 82 mattresses to break even.
8 0
3 years ago
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